"The notion of 'classs interest' is a familiar one in sociological literature, as a set of social objectives. What is its relationship, however, to 'class capacity' -- the ability to relise these objectives? The complex tension between these two poles of definition of any given social class is one fo the guiding themes of Erik Olin Wright's book. It is composed of three lucid and bracing essays, focused on a trio of the most unresolved and contentious problems of Marxist theory."--Dust jacket.